400124434132 has 24 divisors (see below), whose sum is σ = 709644499200. Its totient is φ = 197383305696.

The previous prime is 400124434111. The next prime is 400124434139. The reversal of 400124434132 is 231434421004.

It is a self number, because there is not a number n which added to its sum of digits gives 400124434132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400124434139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694332 + ... + 1915987.

It is an arithmetic number, because the mean of its divisors is an integer number (29568520800).

Almost surely, 2^400124434132 is an apocalyptic number.

It is an amenable number.

400124434132 is a deficient number, since it is larger than the sum of its proper divisors (309520065068).

400124434132 is a wasteful number, since it uses less digits than its factorization.

400124434132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610695 (or 3610693 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 400124434132 its reverse (231434421004), we get a palindrome (631558855136).

The spelling of 400124434132 in words is "four hundred billion, one hundred twenty-four million, four hundred thirty-four thousand, one hundred thirty-two".